Cellucor C4 Ultimate Pre Workout Powder ICY Blue Razz - Explosive

Our review of Cellucor C4 Ultimate finds it best suited for experienced gym-goers and athletes who want a high-stimulant, performance-focused pre-workout. The single biggest reason to buy is its combination of a 300 mg caffeine dose with a 6 g citrulline pump matrix and 3.2 g CarnoSyn beta-alanine, which together deliver pronounced energy, sustained pumps, and improved muscular endurance when pushed hard in the gym. Packaging may vary, but the formula consistently prioritizes energy and performance over a mild stimulant experience.

Key Features

• 300 mg Caffeine: Supplies fast, potent energy to power intense training sessions and sharpen focus during heavy sets.
• Citrulline Pump Matrix: The 6 g concentration is included to support enhanced nitric oxide production for fuller muscle pumps.
• CarnoSyn Beta-Alanine: The 3.2 g dose is a clinically studied form intended to help increase rep count by reducing fatigue during high-volume work.
• Two Patented Creatines: Added creatine forms aim to support strength and power output for explosive lifts.
• Caffeine Tolerance Support: A patented compound in the formula may help the body prolong caffeine tolerance buildup for more consistent stimulant effects.

Who It's For

This product is aimed at intermediate to advanced trainees who tolerate stimulants well and want a pre-workout that combines strong energy with pump and endurance ingredients. Those training for heavy compound lifts, high-volume hypertrophy sessions, or short, intense conditioning work will appreciate the 300 mg caffeine and clinically dosed beta-alanine.

Beginners, people sensitive to caffeine, or those who prefer stimulant-free options should look elsewhere or try a smaller dose first. Also consider alternatives if you dislike noticeable tingling from beta-alanine or if you need a milder daily stimulant intake.

Pros & Cons

Pros

• High stimulant level gives reliable, immediate energy and mental drive.
• Citrulline matrix supports visible pumps during training.
• Clinically studied beta-alanine and patented creatines provide sensible performance support.

Cons

• Taste and tingling sensation receive mixed feedback and may be off-putting to some users.
• The 300 mg caffeine dose may be too strong for stimulant-sensitive individuals.

Specifications

Our Verdict

Cellucor C4 Ultimate is a strong choice for experienced lifters who want a ready-to-go, high-stimulant pre-workout that pairs big energy with clinically dosed beta-alanine and a sizable citrulline pump matrix. It offers solid value for those chasing immediate performance gains, though the flavor and tingling may divide opinion and the stimulant level is not for everyone.

Frequently Asked Questions

How many servings are in a container?
There are 20 servings per container.

Is this product sugar free?
Yes, the formula is sugar free.

Will it cause tingling?
The 3.2 g CarnoSyn beta-alanine commonly causes a tingling sensation for many users; this is expected and temporary.